It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://blog-851527985782.mit-edu.top/post/0415839726

  1. <!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "blog-851527985782.mit-edu.top",cType: 'managed',cRay: '910f8386eec6f5ca',cH: 'VOdW11eAkaAutS4w_gl73xQ1gvE0kREUKzrim2NMiQ8-1739394084-1.2.1.1-t15GDaTPzipYuyU5zuISxVn4iXxsTF7J0JAccOeTszE.CV7OiKivvo4J_pgAiYQE',cUPMDTk: "\/post\/0415839726?__cf_chl_tk=LTnY74QaMzJQCMFjCUpJOTx5XAq_5K9JJ4IWuInT2LU-1739394084-1.0.1.1-UBp91.vdGOE8Tr29yspBbVA1bbrWzSdxSJQGpUEVcBk",cFPWv: 'b',cITimeS: '1739394084',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0415839726?__cf_chl_f_tk=LTnY74QaMzJQCMFjCUpJOTx5XAq_5K9JJ4IWuInT2LU-1739394084-1.0.1.1-UBp91.vdGOE8Tr29yspBbVA1bbrWzSdxSJQGpUEVcBk",md: "k9qsv5WBTp5SxQzqq5UsaCRSKtz9GI3A0AISShCbbPE-1739394084-1.2.1.1-ILN5kE2SloJS77mhMdbvuQLKf1yyEtzupVUt2lAdwQGBTKv.cc6pYWxHEiKcDC5fYHW_hhomhLxLira1E9yRVklrH6998Q73sY1CpS2h.dyy3Ig7xDou92tGABDBAF8yjFTgoRDFuhy5m3u6tP_3pBfCiG5bvasbU2fh7ndyeMnUDFF9ftHBXvLyg_kh1IAVflFvjk_yBeqrcKWwhJSeBdpW_7NVkZCt8PLEz25X4TX8xjuuZ.kMQKBMZj6Z1AWaYc5DZj1xo3swJ3stvfVLxF0vGSzP.fzL541NvLyA.z.9rWCw1HD4AUv98p_TjNAJEdHNRp6gYUAv0pqWbL1vN8iQSLO6OMEAAfHh5W7gtpHYd3bDbOyz4h1Ywf.vSJZHp6dEjlD77vadgBQ7dK9.AkDdI.xMV.PYHMFFzcas8.Crjb9nlyInq8P1txVvd1nvsTDEGq.871Q2U4jAiUXqXYwy2jZmn3N8Npkw.ktIikkADrr1nmoOJc2DavE1DtVQpt6JbuPVeWOklC87k2csLDpgcoGw.OqYpZYusZvNzY0h0yFhqt3kjY3scM.zJE_Bii0tV8Ac73ZX3vknoPRYbxkRhwhYmTrvgpC120VA2HXVPXo_OIC93Wt2xEisIaK85bWg4cmUBkzSqKClLhvRP0b4mJl44J2Z.rTtrcIG59JSBr1nM7ySPpS5eh6FYp4O5odzjgLiMBaVHwNhABN0JZBT20UzciwAZSuwG1GA4l8lDEm1_Y880YNIJtxXwkQxO5NyBhr83U60BXxGiI0pocdPPTpCE5L7P.Jnhxteso3hyqcFduJO.Ld3wdpvRt1sCGPAcWO.CrgCCvo5HK8zcu70RawH1uxxtLWCnUu8kyGFAnpRSryoBs3DKOQj1xuJUIE0jP6.DvYSeDuUJaE2O4swMlF62sEy5GOInfeiniZ48ZJmceyVFrF4kSOFBQwtlGh5TJ53ipcrHOJqZTb_UyRkkUUHDomzQ_Ria9I_Pe20eiHKjfY1tN5xx2m0zfqX1l8VduzVlYaukcP6ZcYdos8nibgT81zU1YoC.C2XkJsm2qYcTBVZOjWRZ2W6Os9lCE3UWI5hniy9JGv7wdyhqWE21o6gnIj7mkaa2BdpT9fBikJJu_9odZQQnrliqrVvNTxYBATFDSwdv9d8MMTVsAuAfZi9KstGtfXSkYYdVF2yUdaCVqxo74XfvbEoeMnUg6Uep1w0ExZemWyNNYZ3I8FNd.Khr97zHkCH3gRskYjbLcYgXtEnE0e7l97Z5sY43aAIGk_CV8xRBXbLD7ndpCwL7KcLb3cgZmWZrDznHjREwj55WB5fcAoVYC6VtVKiDg8jMSpNWxUF4VBDplOaCJ7WECmhvfLgYFPvooaJ.vYqeAzKtZaXJ1WiMdBpJNpsNGu5PgEcSVy_C1vBpq94nAmZygOk8vpxZ7_y7wSmapIlCuQYP8nKAoEy5fNb99Nhe9JlaDc4hGpBDPpfw54ZF_qL8N4hrTLPcI.838zUv3R6rnG3jqrgyUthu0y3AYfW68gmvpZqA1CFtVC.X0ThQjji_KuXRh6ScizQsjgn3JwqvScgenhIvLgKM3oVf2qn9TV8qcZAEd1P2fjfoNCS0ZkzK3jrGGxWqbz_txYa7YROioGtUh86rh7AXAlMDEhbKdM9pFUXS1K3vDiNtKRqo7mn2Hi9i3qXkeGdxs8V_zg510xoCref7aN3OMSnHd_hF7fIFYpbjPv.Pos1Nnb5gdvoQlC7GAD6S6cNQNOUEpLtNuGlhaPjj3g9Nx_.rPM0nYOil7UUQsQowDFYEN2426FcX_6Obv8hiPppuiQCH9LBQYt2whFA9vDI3CTVy2xFN31AdILi6mgiq7kyQvbnBCbiZlnh2IBTrzguHL6YA_60ZarL4UyxNmNksCAIGwRQGW9n7dGmNlCfpH6xPod2rD8Dj4I18hD8tpItIGkw66ZmKtA_8ah1JDmkHJ9xL6Wc5YL7GNHyNuJoAX1_RhIJMqPGF3BNP9Kw5.I1XyJpToQLdSXkcol4mu91t4pjOsKo4BMbssORHAL.IvUX8zf5qhN1UgAVM0EHHeqYdA2WLH0VXK07wJJYFG.AIyL2vILwCPDNXQ3UHzY645w4pLwvga1YCbnJmFZCQ1232YwX36ETnnRSnkuMKVmzMeeKI61687695Ftlw8g7OHOuRpKoj8E3ECsZu.C9Cm0AvjDsBPQPC9lDfc6ZdGe_37xGb27F",mdrd: "2jwq.Z7q8.0PRtyGVvJOWMAKvQYM7V9OdKX31fWl9R0-1739394084-1.2.1.1-_D2llPla_kMVbw7n9dRebxPFajFQc4PZL6aLvsmDTBTX8xAlkYD_kihVnUQH7SYGN5XDY1GYjBvDyRJJWoegoCyy1cBDOGJ5pZHi.7m62A_npxjRjSeAhXspEdzcGN9FHEb.RRvVu6c6zJB5OJByNblasXKFJaTwpnXKsbsW_7ey5h8Khl57giqNJ3Qss_dloCZWzhFY20UckyudwqsgUxyu.ED2g4ldkCpcgaXyJ5Lv7XsA.X2pW1rMMR3kblIaLKKmq_tNiToKCfb468RXQuW.czDHNnUbeAbaPzVj4GBUexy14OiS7rJES___ww7PpjWNJ07Zoor7W0EQ7mvDzXXEAFG6Kiu5OjEye_fL5nMIHIqvWTK.wnZPrfH__qIn6GH_QeMmEDxQAMLkZ_GO1uyZjI_yfBN7iiGyGMOUqLxwHPlGbjbhG8P7TAplZ5pVdU311aG019yeDc5v6GJNgyjq9_4jzBNvO4.cwe.A0ldHI1ImrQfW80R2m39DSnUOv94dXwrD4PjDeyvAbsUPbm3iYpaVa.dHvHnrEOEGUuNgX2C2Xkp7BT0btzc1VleRxx1G4WM6NFvwyzKIuFFmjtcQa.ykM6h0_IDf2n1b_bYGIy0W7RZOivv8eagQUQadsT1AFxpf0AAOdeDIhm.Op28S0FqdkqE6jcPOzyOBzmewD3Faid6sg_6fdbEEBwd0uY.F2ajpZnVV._7fL.zvHxsYOYjZwr7G2o0OVDnxeWL8ozPKKoER.DM.oJkctNtxcVhvePcbh2ebiOX6ApNMTpvYzwdQKXJ3w.PLzbgo8KpISmapkf1bnBnVy7pQbbiAOQQRONVon.pqk2RkGpOQ_2xR4EM.h.aIzIoKhSHlwoOzLVA19slXwmQGXbpTK7qD5Tof1jOEEfcTeqrvsFSFy1Ne1s2pdnCxu13J3BQFl4.SRImCcFIO3adC1eL_wLRMdxkE_gm9p6itLPzRJfEJVm5zmHut7HuXJ.z_95KXIwmPkG7vneiD99Pbm2KdrAuCZtsFKieRc7MO.BSJiaTLH1q.O4uHs7UWpLZMYnYMTDhROsoGIqGErbQ_G.pB6VjHqJDg0lqEzrdOCO0NsxHGjxbpUqgG43dv8nbIPT..Nu3sK9neCNlfsE8oqK.Qhbz7Ofbd8EkPezSsea1zwNhFScbogcEppuiJSN_47E1EsTK71TUx278vbcDEhRFAtgDrpbriZLQpH.JV2MTypXTZ8W_Kaopd4rfdlDdDiAeUbl4qvBFwm14aPwxB7iZOnQaS6aJiYNUpHCaMC9IstXlpTcLS63QgMEbfSC33ypiHS5z4YDbqFRW2q2LSMNB0_N1bERa5RjOvqQw7F2eu4ZL9zvhsl4jEPKb.pibSWdOnqAqLA7psmgQT19aHteNoTZrXVdqk1wGwYomRCtXGkbKLDWozGHPTjM2RR_3wJpRUPBAGYFkt5zc9YAkG_JOc_L7HdMqCygsphCehlexaTQAS8TBepLWxEpKa4HiyCbi2aClHT97c2uE9sXmXt6kWeuyel2d_Sst4b3dIVTK5RZ552Ze8OIQ6Q5QVmzqK2Kcd0O76MmBIF.nhs8H0L.nrE6rHsurai.BRF2bFnisslgngSgZa8P6dDml0IVxMsQMhUcOsb3Sr5XFQ3aW1guLfc594Vs_W11zKKf21ZBqotA6Hkvv7YS.O1iml7Qjq1oWlN_roszI_n5Op0W34NFxR6ImDyzsVc_1ZFTV5TK1ojVsnJQrsisA0QK_B875EesZILZUEqdPA5Xz0OqxHUagQABcpzkkzbhKhSTX25ZPapQiN1v5tNN.gbFpUWmK7_chlwEs"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=910f8386eec6f5ca';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/0415839726?__cf_chl_rt_tk=LTnY74QaMzJQCMFjCUpJOTx5XAq_5K9JJ4IWuInT2LU-1739394084-1.0.1.1-UBp91.vdGOE8Tr29yspBbVA1bbrWzSdxSJQGpUEVcBk" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda